Machine for forming rings from segmental pieces



Jan. 7, 1930. F. s. GODFREY MACHINE FOR ronmmnmes FROM saeusnm, PIECESFiled Oct. 20, 1925 2 Sheets-Sheet l InVentorI Fredrick S. Godfrgy,

HLsAttorngy.

Jan. 7, 1930. F. s. GODFREY MACHINE FOR FORMING RINGS FROM SEGIIENTALPIECES 2 $heets-Sheet 2 Fi19 d Oct. 20, 1925 FLg. 6.

r o t n e v n I Fredrick S. Godfre w M 2 HLs Attorngy.

Patented Jan. 7, 1930 panying nism of the machine is and described inthe UNITED STATES PATENT "OFFICE FREDRIGK S. GODFREY, 0F LYNN,MASSACHUSETTS, ASSIGNOR T0 GENERAL ELECTRIG COMPANY, A CORPORATION OFNEW YORK MACHINE For. ronm'me RmesrRoM- SEGMENTAL PIECES Applibationfiled October 20, 1925. Serial No. 63,795.

In certain manufacturing processes it is desirable to form rings of somethickness from comparatively thin segmental" pieces, the pieces beingstacked successively one on another in partial overlapping relation andafterwards fastened together.

The object of the present invention is to automatically this work andfor a consideration of what is believed to be novel and the invention,attention is directed to the accomdescription and the claims appendedthereto. Q

In the drawing, Figure 1 is a perspective view, partly broken away, of amachine embodying the invention; Fig. 2 is a longitudinal sectional viewof part of themachine, the section being taken online2-2, Fig. 6; Fig. 3is a detail view of certainparts showing them in one position; Fig. 4 isa detail view similar to Fig. 3, showing the parts in another position;Fig. 5 is a detail view of a connecting rod connection; Fig. 6 is a planview of the machine; Fig. 7 is a detailview of .a

partof a sliding tive view of the makes, and Fig. 9 is a face view ofone of the segments used in making a ring such as that shown in Fig. 8.

Referring first to Figs. 8 and 9, the purpose of the machine is to takea number of segmental pieces 10, such as those shown in Fig. 9, andstack them one on another in partial overlapping relationto form abuilt-up ring 11 such as that shown in Fig. 8, several layers of thesegments being present in the plate; Fig. 8-is a"perspeccomplete ring.In the present instance the segmental pieces are formed of canvastreated with an adhesive binder such as a phenolic condensation product,and after being formed the rings 11 are used in the manufacture ofnon-metallic gear wheels. A non-metallic gear wheel embodying in itsmanufacture rings of the type shown inFig. 8 is illustrated patent toGuay, 1,501,028, dated July 8, 1924.

12 indicates a support carried by suitable legs (not shown) and uponwhich the mechamounted. Directly.

on top of support 12 are two longitudinallyon an arc the same as ringwhich the machine extending spaced members 13 and 13 on which ismoutneda table 14. On table 14 is a chute. 15 of a shape to receive segments10.

In F igs. 1 and 2 a numberof segments are shown in the chute and abovethem is a follower 16 which slides in the chute and serves to press thesegments downward. On table 14 are arranged two guides 17 in whichslides a flat plate 18, the plate resting directly on the top of table14. The forward end of plate 18 is provided with slots forming teeth 19and the upper surfaces of teeth 19 are cut away that of the outer edgeof segments 10 providing shoulders'20 adapted to engage a segment 10.Adjacent to the two outermost teeth 19, plate 18 is cut back to providerecesses 21. On table 14 beneath plate 18 is a longitudinally-extendin.slot

22 and connected to the under side of pla e 18? centiic 26-ismounted ona shaft 27 carried in bearings 28 mounted on support 12. It will thus beseen that when shaft 27 turns, plate 18 will be reciprocated forward andback by means of connecting rod 24, the plate sliding on the top surfaceof table 14. On the back of chute 15 at its lower end is a cross piece.15 which rests on'to'p of guides 17 and is held by bolts 15". Thiscross piece supports chute 15 in spaced one of the segments.

.In support 12 in advance of table 14 is alongitudinally-extendirig'slot 29 and mounted over this slot is a disk30 which is held in positiomby a bolt 31. The head of the bolt iscountersunk so as to be flush with the surface of disk 30 and has a nutand washer on the under side of support 12. By loosening relation to thetop surface of table 14, whereby plate 18 can slide beneath the chute.

position, that is,

the nut on bolt 31, disk 30 may be adjusted longitudinally on support12. In the center down through slot 29 and on it is a spring 35 heldbetween a nut 36 on the lower end of the stud and a washer 36 whichengages the under side of support 12, the washer being loose on thestud. 1

Supported on disk 30 is a turntable com prising twoplates 36 and 37fastened together by screws 38. At their central portions plates 36 and37 are provided with recesses, the collar 34 on stud 32 lying in therecess in plate 36. In the recess in plate 37 is arranged suitablefriction material 39 against which collar 34 is held by the spring 35 onthe lower end .of stud 32. By this arrangement the turntable comprisingplates 36 and 37 is frictionally connected to disk 30, bein free to turnon the disk against the friction between collar 34 and friction mate.rial 39. 'By adjusting the nut on the lower end of stud 32 to vary thetension of spring 35, the desired degree of frictional resistance to theturning of the turntable formed by plates 36 and 37 maybe obtained. Stud32 projects somewhat above the surface of plate 36 and adjacent it inplate 36 is a pin 40. In the edge of plate 37 are ratchet teeth 41.

42 indicates a holder adapted to be placed on the turn table. It has acentral opening 43 to receive the upper end of stud 32 and an ad acentopening 44 to receive pin 40. The

peripheral portion of holder 42 is in the form of an annular recess 45in which segments 10 are stacked in forming a ring 11. The

annular groove 45 is of a diameter to form a ring of the desired sizeand-of a width to receive segments 10 and hold them in position. Aholder 42 is positioned on the turntable by placing it thereon in such amanner that stud 34 and pin 40 engage in openings 43 and 44. The studand pin serve to hold it centered on the turntable and to cause it toturn with the turntable. When a holder 42 is placed on. the turntable,its rear edge is positioned directly in front of chute 15 and thearrangement is such that when plate 18 is shd forward by meansofeccentric 26, fingers 19 are brought directly over annular recess '45.This is shown particularly in Fig. 3.

On the forward edges of chute 15 are two blocks 46 and 47. Pivoted onthe inner, adj acent faces of blocks 46 and 47 are hooks 48 oted looselyso which are restrained in their downward movement by stops 49. Hooks 48are piv-f theytend to fall by gravity. 5

In block 47 is a vertical opening in which slides a post 50 and i theside of block 47 is a slot 51 through w ich a pin 52 projects,

the inner end of the pin. being connected to 0st 50. Enga ing the underside of pin 52 e arm being held yieldingly 1s an arm 53, t

the under side of the pin by in contact with a leaf spring 54 attachedto arm 53 on its spring passes. ed to be engaged by 27, spring 58serving engagementwith the cam. When shaft 27 rotates cam 60 engagesroller 59, thereb moving arm 57 up and down and impar ng an a rearwardlyextending oscillating movement to shaft 55. This serves to move arm 53down and up, thus imparting reciprocating movements to post 50..

Fastened to the ilpper end of post 50 is a I bracket61 having an openingin its ends through which extends loosely the upper end of a plunger 62,

there being a nut 63 on the end of the plunger above the bracket. On

the plunger is a shoulder 64 and arranged between shoulder 64 andbracket '61 is a spring 65 which holds plun' er 62 yieldingly in itslowermost position. en post 50 is reciprocated, the plunger rod 62 isreciprocated along with it.

Formed on the outer side of member 13 is a groove 66 partly covered bystri s 67 there! byproviding a we in which sli as a bar 68. Bar 68 isconnecte by a pin 68 and a link 69 to a spool 7 0. which 1s fastened toa disk 71 on shaft 27 by means of a bolt 72, the head of the bolt beingin an undercut slot 73 in disk 71. This rovides an eccentric connectionbetween lin 69 and shaft 27. By changing the position of the bolt headin undercut slot 73, the eccentricity of the connection between link 69and shaft 27 ma be adjusted. With this arrangement it wil. be seen that,when shaft 27 turns, a reciprocating movement is imparted to bar 68.Connected to the forward end of bar 68 is an arm- 74, the connectionbeing made by means of screws 75 which extend through a slot in arm 74and engage tapped openings in bar 68. By this arrangement theconnection of arm 74 with the bar ma be adjusted. n the forward endiofarm 74' is a rectangular opening 76 in which is pivoted a pawl 77normally held againstfit stop. pin 78 by a suitable leaf spring 79. Pawl77 is adapted to engage ratchet teeth 41 on plate 37. By this meansreciprocating movement of bar 68 and arm 74 causes-pawl 77 to engageratchet teeth 41 to impart a step by step turning movement to theturntable comrising plates 36 and 37 and hence to a older 42 placedthereon.

On the end of shaft 27 oppositeto that at which disk 71 is located is aclutch plate 80.

vMounted in bearings 81 on support 12 and in line with shaft 27 is adriving shaft 82. 'Slidably mounted on driving shaft 82 is a lever 85which is suitably pivoted at 185 on.

support 12. The other arm of hell crank lever 85 is connected by a rod86 to a head 87 which slides in a guide 88 and which at its outer end isheld in engagement with the edge of the disk 30 by a leaf spring- 89; Inhead 87 is a notch 90 adapted to be engaged by a pin 91 (see Fig. 6)projecting downwardly from the under sideof plate 37. n driving shaft 82is a spring 92 which bears against the end of sleeve 83 and biasesclutch plate 84 into engagement with clutch plate 80. When pin 91engages notch 90 it moves rod 86 to turn bell crank lever 85 in adirection to move clutch disk 84 away from clutch disk 80 against theaction of spring 92, thereby disconnecting driving shaft 82 from shaft27.

. The operation is as follows: Assume that the partsare in the positionsshown in Figs. 1, 2 and 5 of the drawings and that spring 92 isholdingclutch 84 in engagement with clutch disk 80 so that shaft 27 isrotating. As seen in Figs. 1 and 2, a segment rests on fingers 19, theplunger 62 is in its uppermost position and connecting rod 69 is at theforward end of its stroke, pawl 77 being in engagement with a ratchettooth 41. The direction of rotation ofshaft 27 is indicated by thearrows in Figs.- 1 and 6. In the positions of the parts shown, thedepositing of a segment 10 in annular groove 45 has been ust completedand the turntable is about to be turned to move holder 42 into=positionto receive the next segment. As shaft 27 turns in the directionindicated by the arrows from the position it is shown as occupying, rod69 and arm 74 are retracted, pawl 7 7 turning the turntable the distanceof one ratchet tooth. At the same time eccentric'26 and rod 24 pushplate 18 forward to carry the lowermost segment 10 in chute to aposition directly over annular groove in holder 42. This is illustratedin Fig. 3. At this time the other segments in chute 15 are supported byplate 18 as is clear from'Fig. 3. These movements of arm 74 and plate 18take place simultaneously and during one-half turn of shaft 27. On thenext half turn of shaft 27, the arm 74 is again moved forward to bringpawl 77 into engagement with the next ratchet tooth 41 and plate 18 isretracted.

When late 18 moves forward from the position s own in Fig. 2, to thatshown in Fig.

3, it slides under hooks 48 and the se ment 10 on fingers 19 engage thehooks an lifts them so that they slide over the top of the segment. Atthe completion of the forward movement of beyond hooks 48 and they dropdown behind the segment, the points of the hooks entering recesses 21 inplate 18. Their downward movement is limited by. stops 49. This is plate18, segment 10 is brought shown in Fig. 3. Now, when plate18 isretracted the hooks pull the segment 10 ofi' fingers 19, whereupon itdrops into the annular groove 45 in holder 42. Prior to the completionof the return movement of plate"- 18, cam begins to lift lever arm 57against the action of spring 58 to lower and just after fingers underthe segment 10, permitting it to drop into annular groove 45, plunger 62is brought plunger 62 19 have moved from down into engagement with it toforce it firmly to its position. This is shown in Fig. 4. The stroke ofplunger 62 is completed during the interval-while fingers 19 are notover annular groovev45, the down and back movement of the plunger takingplace quite quickly. After plunger62 hasmoved downward as far as it cango, spring 65 yields to permit of the continued movement of post 50.Leaf spring 54 forms a yielding connection between arm 52 and post 50 sothat when plunger 62 is arrested inits movement the shock on pin 52 iscushioned.

Upon each revolution of shaft 27, a segment 10 is deposited in annulargroove 45 and the holder turned. the distance of one ratchet tooth 41.After the turntable has made a.

complete revolution, less one ratchet tooth 41,

pin 91 engages notch 90, and on the final movement of the-turntable, pin91 moves rod 86 to turn bell crank lever. 85 ina direction to moveclutch disk 84 away from clutch disk 80. .This disconnects driving shaft82 from shaft 27 and stops shaft 27. The operative thenremoves-holder-42 from the turntable,

substitutes an empty holder, and then moves rod 86 outward againsttheaction of spring 89 to release notch 90 from pin-9l.. Spring 92 thenmoves clutch plate 84 into engagement withclutchplate 80 thus a 'ainconnecting driving shaft 82 to shaft 2 The ma chine then operates to laya ring of segments in the new holder. It will be seen that in runningthe machine, the operative has only to change the holders 42 and startthe machine by pushing rod 86 outward, the laying of the ring ofsegments and the stopping of the .ma-

chine when the ring is completed being automatic.

The number of-segznents deposited in the holder in forming a completering depends u on the number of ratchet teeth on the turntafiile so thatthe number of se ments-may be varied by changing the num er of ratchet rteeth.- By adjusting the position ofthe turntable bymeans of bolt. 31and slot 29, it may be positioned to carry a holder of a diameter tomake the desiredesize of ring, arm 74 and 3 bolt 72 bein adjusted alsoto position correctly awl 7 and to give the required length of stro e toarm74.,

In accordance with the revisions of the v patent statutes, I havedescribed the principle of operation of my -invention,.together with theapparatus which I now consider to represent the best embodimentthei'eof, but I de-. sire to have it understoodthat the apparatus shownis only illustrative and that the invention'may be carried out by othermeans.

-What I claim as new-and desire to secure by Letters, Patent of theUnited States, is, 1 In a machine for forming 'ringsfrom segments, thecombination of aturntable, a 2 holder suppprted thereon, means forimparting a step y step turnin movement to the turntable, and means forepositing segments in the holder during the intervals between successivestep by step movements of the.

holder toform a continuous ring from the segments. 1

2. In a machine for formingrings from segments,the combination of aturntable, a holder sup ortedthereon, means for imparting a step y stepturning movement to the turntable, a chute adapted to hold segments,

a-member which moves under the chute for transferring segments from thechute to the holder, and means f ormoving said member;- 3.,In a machinefor forming rings from segments, the combination of a support, a

chute mounted on the support with its lower end in s aced relation tothe support, said chute be g adapted to hold segments flaholder, meansfor supporting 'said holder adj acent to the'chute, a member which movesI under the chute for transferring segments from the chute to theholder, and means "f0 moving said member.

4. In a machine for forming rings from segments, the combination of asupport, a chute mounted on the support with its lower end in spacedrelation to\the support, said chute being adapted to hold segments, a

, 0 holder, means for supporting said' holder 7 adjacent to the chute,means for imparting turning movement to the holder, a member whichmoves-under the chute for transferring segments from the chute to theholder, and means for moving said member. 5. In a machine for formingrihgs from segments, the combination of a support, a chute formed on thesupport with its lower end in spaced relation to'the support, said chutebeing adapted to hold segments, a holder, meansifor supportingsaidholder adjacent'to the chute, means for imparting turning movementto the holder, a member which moves under the chute for transferring asegment from the chute to a position directparting a step unease -o lyover the holder, means for moving said member, and means for moving asegment off the member to permit it to drop into the holder.

6; In a machine for forming rings from segments, the combination of asupport, a

chute formed on the support with its lower end in s aced relation to thesupport, said her to permit it to drop into the holder, anda v plungerfor forcing bottom of the holder.

7. In a machine for forming rings from segments, the combinationof asupport, a chute mounted on the support with its lower end in spacedrelation to the support, said chllte beingadapted to hold segments, aholder, means for mounting said holder in front of the lower end of thechute, means for ima segment toward the the holder, a plate which slidesforward and back under t e chute for transferring segments from thechute to the holder, means for engagin a segment when carried forward bythe p ate for stripping a segment from the plate when the 'plate movesbackward and cans for moving said plate.

' "8. In a machine for formlng rings from segments, the combination ofasupport, a chute mounted on the support with its lower end in spacedrelation to the support, said fchute being-- adapted to hold segments, a

holder,"means for mounting said holder in front of the lower end ofthe-chute, a mem.--

ber which slides forward'and back under the chute for transferringsegments from the chute to the holder, driving means for moving saidmember and for imparting a step by step turning movement to said holder,and means actuated by the means which imparts by step turning movement'to the step-by-step movement to the holder for I stopping said drivingmeans 'whenthe ring is completed. 1 9. In a machine for forming ringsfrom segments, the combination of a support,. a

chute mounted on the support with its lower end in spaced relation tothe support, said chute being, adapted to hold segments, a. holder,means for mounting said holder in froilt of the lower end of the chute,a member which slides forward and back under the chute for transferringsegments from the chute to the holder, driving means for moving saidmember and for imparting a step by step turning movement to said holder,said driving means including a clutch, and means controlled by the meanswhich imparts the step by step movement to the holder for openinga'aaasse the clutch to stop the machine when aring is completed. p

10; In a machine for formin rings from segments, the combination of aass, a turnta 1e mounted on the base, a holder supported on theturntable, means for imparting a stepby-step turning movement to theturntable, means carried y the base for depositing segments in a holderon the turntable during the intervals between suecessive step-by-stepmovements of the turntable, and-means controlled by the movement of theturntable for stopping said turntable upon the completion of theformation of a ring.

11. In a machine for forming rings from segments, the combination of abase, a turntable mounted on the base, a holder mounted on saidturntable, said holder having an annular groove therein," means forimparting turning movement to the turntable, means carried by the basefor depositing segments in the groove in the holderon the turntable, and

means for forcing segments down into the groove.- v

12. In a machine for forming rings from segments, the combination of abase, a turntable mounted on the base, a holder supported on saidturntable, said holder having an annular groove therein, means forimparting a turningmovemen't to the turntable, means carried by the basefor depositing segments.

in the groove in the holder on the turntable,

means for forcing segments down into the groove, and means actuated by amoving part ofthe machine for automatically stopping the turntable uponthe completion of the formation of a tin In Witness w ereof, I havehereunto set my hand this 15th da of October, 1925.

nan RICK 's. GODFREY.

